I know exactly the type of packaging that you are talking about, because I cannot find it either! At least not on any of the regular suppliers websites. All of the packaging options are pretty much the same, boring, and plain, and they do not fit my brand at all. I have a high end skin care...
In order to properly use anhydrous caffeine powder in any formulations to dissolve it properly, you cannot use only water. You need to use an acid. Add citric acid until it is fully dissolved. Sure adding boiling water will make it look dissolved, but once it cools it is no longer. And if you...